Guard for band-saws.



S. FLEMING. v GUARD FOR BAND SAWS.

APPLIOATION FILED JULY 17, 1912.

Patented Feb. 25, 1913 UNITED sir-Arias PATENT OFFICE.

SMITH FLEMING, SEATTLE, WASHINGTON, ASSIGNOR F ONE-HALF 'TO GARWbOD N.SHELDON, OF SEATTLE, WASHINGTON.

GUARD FOR BAND-SAWS.-

Specification of Letters Patent. Patented Feb. 25, 1913.

Application file'd- July 17, 1912.. Serial No. 709,888.

To al l'whom it may concern.

Be it known that I, SMITH FLEMING, a citizen of the United States,residing in Seattle,in the county of King and State of Washington, haveinvented certain new and useful Improvements in Guards for Band- Saws,of which the following is a specification.

saw from running off the band wheels and dropping down upon theoperator. By reason of these improvements the operator may get not onlyhis hands but also his head close to the work without danger.

In carrying out my invention I provide a metallic trough-shaped orflanged guard of such width as to receive the saw between .its flangesand 'of such length as to reach from the lower to the upper'guide, andwhich is provided with a slotted arm enabling it to be readily connectedw th the lower guide and with a holder by which it may be connected withthe upper guide. The upper end of the guard extends a short distanceabove the upper guide and is bent forward so that should the saw break,its teeth will not engage the upper edge of the guard. The upper portionof one of the flanges is cut away so that the upper band wheel may clearthe guard when the latter 15 adjusted upwardly toward the periphery ofthe wheel.

In the accompanying drawings, Flgure 1 is a perspective view showing somuch of a band-sawing machine, with my mprove-- ments applied, as isnecessary to illustrate my invention. Fig. 2 is a detail view 1n s deelevation showing the manner of attaching the guard to the guides. Fig.3 shows a transverse section on the line 3-3 of Flg 1. Fig. 4 shows atransverse section on the line 4-4 of Fig. 1. Fig. 5 is a detail viewpartly in section and partly in elevation showing the relation of theband wheel, the guards and the upper guide. Fig. 6 is a perspectlve Viewof the upper end of the guard.

My improvements may be applied to the band-sawing machines of the usualklnd,

orin fact to any standard machine of this class. I have shown themapplied to a machine in which the band-saw runs verticallv over upperandlower bandwheels through a table and has upper and lower guides bothabove the table.

In Fig. l, A indicates the upper band wheel, B the table, and O the sawwhich 0perates through a slot 7) in the table.

D indicates an arm of the frame which is formed on its outer end with aguide (1 for a vertically adjustable bar E which may; be held inposition when vertically adjusted, by a set screw (3. The bar E carriesnear its upper end a saw guide F of well known con;- struction and atits lower end it carries a lower guide G, also of known form.

The construction of the-upper and lower saw guides need not be'describedas they form no part of this invention. It will be understood, however,that the lower guide is adjustable vertically to and from the table toaccommodate work of different thicknesses in the usual way.

A guard H, of well known form, is attached to the upper guide near theupper band wheel and this. protects the operator to some extent, butthere is great danger of injury to the operator by that portion of thesaw between the upper and lower guides. Often the operator being intenton the work will not only place his hands. but also his head, near thesaw between the upper and lower guides, and many accidents have happenedon this account. In order to avoid this, I have provided the guard Mwhich is provided with means for readily attaching it to the upper andlower guides and which, in practice. shields the operator and preventsinjury. The guard is trough-shaped. 2'. 6., it has a middle portion Inand two parallel flanges m. m at the edges of the middle portion. Theupper part of one of the flanges is cut away as indicated at m in orderto clear the band wheel when the guard is adjusted to such an extent asto approach the band wheel. The upper portion of the guard is bent orturned outwardly in order that should the saw break, its teeth will notcome in contact with the upper edge of the guard. I provide'the guardnear its lower end with an arm N formed with a slot n which receives theset screw g forming part of the lower guide. By merelv slipping the armon the screw behind the head thereof and tightening the screw theconnectionbetween the guard and the lower guide may be quicklv made. Insome cases'the screw g is on the opposite side of the saw and when thisis the case an 'arm N may be attached to "-the opposite side of theguide. In Fig. 2

holes a are shown-in the flange m which -may be used for this purpose.Preferably the. arm N is made in a separate piece as above described,being riveted or otherwise secured to the guard in any suitable way.

P indicates a holder for the guard which is attached to the upper sawguide. It con- 1 sists of a piece of sheet metal having a midp whichfits on the bolt h or head thereof. It is obvious that the attachmentof'the dle portion 29 and flanges p, 29 between which the guard isarranged The holder P is not secured tothe guard but is attached to thesaw guide F by the bolt h which secures the guard .H to the saw guide.Preferably the flange 79 is formed with. a slot or recess 7 guard to theupper and lower gu ides may be quicklv made, and when this 1s don theparts appear as shown in Fig. 1, the saw be- 111g housed in theguardbetween the upper and lower'guides, and all danger of injury to theoperator being avoided.

The guard interferes in no way with the usual adjustments of the guides.The holder P permits the guard to move Vertically freely correspondinglywith the vertical ments of the lower guide.

v I claim as myinvention:

1. A trough-shaped guard for band-saws having a laterally projecting armon its a adj list-- lower end adapting it to be attached to the lowerguide of a, band-saw androvided near its upper end with a holder a aptedto be attached to the upper saw guide.

'2. A. trough-shaped guard for band-saws having a laterally projectingarm near its lower end adapting it to be'attac'hed to the lower guide ofa bandsaw having its upper 1 which connects it with the 'upper guide butpermits the guard to move vertically rela-.

tively to the upper guide.

V .In testimony. whereof, I have hereunto subscribed my name.

I SMITH FLEMING.

Witnesses F. N. WEYANT, A. H. GROUT.

